<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card>
            <!-- 搜索与添加区域 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
                </el-col>
            </el-row>

            <!-- 用户列表区域 -->
            <el-table :data="userlist" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                        <!-- 修改按钮 -->
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                        <!-- 删除按钮 -->
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                        <!-- 分配角色按钮 -->
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                        <el-button type="warning" icon="el-icon-setting" size="mini"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页区域 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[1, 2, 5, 10]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>
        </el-card>

<!-- 添加用户的对话框 -->
        <el-dialog
        title="提示"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClosed">
        <!-- 内容主体区域 -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户的对话框 -->
        <el-dialog
            title="修改用户"
            :visible.sync="editDialogVisible"
            width="50%"
            @close="editDialogClosed">
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
    export default{
        data(){
            // 验证邮箱的规则
            var checkEmail=(rule,value,cb)=>{
                // 验证邮箱的正则表达式
                const regEmail=/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

                if(regEmail.test(value)){
                    // 合法的邮箱
                    return cb()
                }

                cb(new Error('请输入合法的邮箱'))
            }
            // 验证手机号的规则
            var checkMobile=(rule,value,cb)=>{
                // 验证手机号的正则表达式
                const regMobile=/^1[3-9]\d{9}$/

                if(regMobile.test(value)){
                    return cb()
                }

                cb(new Error('请输入合法的手机号'))
            }

            return{
                //获取用户列表的参数对象
                queryInfo:{
                    query:'',
                    //当前的页数
                    pagenum: 1,
                    //当前每页显示多少条数据
                    pagesize: 2
                },
                userlist:[],
                total:0,
                // 控制添加用户对话框的显示与隐藏
                addDialogVisible:false,
                // 添加用户的表单数据
                addForm:{
                    username:'',
                    password:'',
                    email:'',
                    mobile:''
                },
                // 添加表单的验证规则对象
                addFormRules:{
                    username:[
                        {required:true,message:'请输入用户名',trigger:'blur'},
                        {min:3,max:10,message:'用户名的长度在3~10个字符之间',trigger:'blur'}
                    ],
                    password:[
                        {required:true,message:'请输入密码',trigger:'blur'},
                        {min:6,max:15,message:'密码的长度在6~15个字符之间',trigger:'blur'}
                    ],
                    email:[
                        {required:true,message:'请输入邮箱',trigger:'blur'},
                        {validator:checkEmail,trigger:'blur'}
                    ],
                    mobile:[
                        {required:true,message:'请输入手机号',trigger:'blur'},
                        {validator:checkMobile,trigger:'blur'}
                    ]
                },
                // 控制修改用户对话框的显示与隐藏
                editDialogVisible:false,
                // 查询到的用户信息对象
                editForm:{},
                // 修改表单的验证规则对象
                editFormRules:{
                    email:[
                        {required:true,message:'请输入用户邮箱',trigger:'blur'},
                        {validator:checkEmail,trigger:'blur'}
                    ],
                    mobile:[
                        {required:true,message:'请输入手机号',trigger:'blur'},
                        {validator:checkMobile,trigger:'blur'}
                    ]
                }
            }
        },
        created(){
            this.getUserList()
        },
        methods:{
            async getUserList(){
                const {data:res} = await this.$http.get('/users',{params: this.queryInfo})
                if(res.meta.status!==200){
                    return this.$message.error('获取用户列表失败！')
                }
                this.userlist=res.data.users
                this.total=res.data.totalpage
                console.log(res);
            },
            //监听 pagesize 改变的事件
            handleSizeChange(newSize){
                // console.log(newSize);
                this.queryInfo.pagesize=newSize
                this.getUserList()
            },
            //监听页码值改变的事件
            handleCurrentChange(newPage){
                console.log(newPage);
                this.queryInfo.pagenum=newPage
                this.getUserList()
            },
            //监听 switch 开关状态的改变
            async userStateChanged(userinfo){
                console.log(userinfo);
                const{data:res}= await this.$http.put(`/users/${userinfo.id}/state/${userinfo.mg_state}`)
                if(res.meta.status !==200){
                    userinfo.mg_state=!userinfo.mg_state
                    return this.$message.error('更新用户状态失败!')
                }
                this.$message.success('更新用户状态成功!')
            },
            // 监听添加用户对话框的关闭事件
            addDialogClosed(){
                this.$refs.addFormRef.resetFields()
            },
            // 点击按钮，添加新用户
            addUser(){
                this.$refs.addFormRef.validate(async valid=>{
                    console.log(valid);
                    if(!valid)return
                    // 可以发起添加用户的网络请求
                    const {data:res}=await this.$http.post('/users',this.addForm)
                    if(res.meta.status!==200){
                        this.$message.error('添加用户失败!',err)
                    }
                    this.$message.success('添加用户成功!')
                    // 隐藏添加用户的对话框
                    this.addDialogVisible=false
                    // 重新获取用户列表数据
                    this.getUserList()
                })
            },
            //展示编辑用户的对话框
            async showEditDialog(id){
                // console.log(id);
                const {data:res}=await this.$http.get('/users/'+id)
                if(res.meta.status!==200){
                    return this.$message.error('查询用户信息失败!')
                }
                this.editForm=res.data
                this.editDialogVisible=true
            },
            // 监听修改用户对话框的关闭事件
            editDialogClosed(){
                this.$refs.editFormRef.resetFields()
            },
            // 修改用户信息并提交
            editUserInfo(){
                this.$refs.editFormRef.validate(async valid=>{
                    // console.log(valid);
                    if(!valid)return
                    // 发起修改用户信息的数据请求
                    const{data:res}= await this.$http.put('/users/'+this.editForm.id,{
                        email:this.editForm.email,
                        mobile:this.editForm.mobile
                    })
                    if(res.meta.status!==200){
                        return this.$message.error('更新用户信息失败!')
                    }
                    // 关闭对话框
                    this.editDialogVisible=false
                    // 刷新数据列表
                    this.getUserList()
                    // 提示修改成功
                    this.$message.success('更新用户信息成功')
                })
            },
            // 根据id删除对应的用户信息
            async removeUserById(id){
                // 弹框询问用户是否删除数据
                const confirmResult=await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).catch(err=>err)
                // 如果用户确认删除，则返回值为字符串confirm
                // 如果用户取消了删除，则返回值为字符串cancel
                // console.log(confirmResult);
                if(confirmResult!=='confirm'){
                    return this.$message.info('已取消删除')
                }
                const {data:res}=await this.$http.delete('/users/'+id)
                if(res.meta.status!==200){
                    return this.$message.error('删除用户失败!')
                }
                this.$message.success('删除用户成功')
                this.getUserList()
            }
        }
    }
</script>

<style lang="less" scoped>

</style>